Garcia said already, the PSC's monthly share from the Philippine Amusement and Gaming Corp. (Pagcor) dwindled to about P40 million in December 2012, from a high of P60 million, and he feared the downward trend could go on once the private casinos open.

"If the trend continues and let's say we'll drop by about P10 million a month, that's already P120 million a year (in decrease) so malaking mawawala sa PSC (the PSC stands to lose a lot from our share from Pagcor)," the PSC chief said.

Per Republic Act 6847, the PSC receives five percent of the income of the Pagcor to finance the country's integrated sports programs. The computation of the five percent share is also a subject of debate between the two government entities.

Garcia said to his knowledge, private casino operations, such as the one at Resorts World and new entities at Pagcor City, do not fall under this category.